Exploring Equations of Lines

Which form of linear equation is represented by y = mx + b?

• Quadratic Form

• Slope-Intercept Form

• Point-Slope Form

• Standard Form

In the equation Ax + By = C, what are A, B, and C?

• Intercepts

• Constants

• Slopes

• Variables

If you have a table of values and the y-intercept is given, what should you find next to write the equation?

• The quadratic form

• The standard form

• The slope

• The x-intercept

Given a graph with a y-intercept of -3 and a rise of 4 and run of 3, what is the equation of the line?

• y = 4/3x - 3

• y = 3/4x + 3

• y = -4/3x + 3

• y = 4/3x + 3

What is the point-slope formula?

• y = mx + b

• Ax + By = C

• y - y1 = m(x - x1)

• y = x + b

How do you write the equation of a line given a point (6, -4) and a slope of 1/3?

• y - 4 = 1/3(x - 6)

• y - 4 = 1/3(x + 6)

• y + 4 = 1/3(x - 6)

• y + 4 = 1/3(x + 6)

What is the slope of a line parallel to y = -4x + 1?

• -1/4

• 4

• -4

• 1/4

If a line is perpendicular to y = 2x - 3, what is its slope?

• -1/2

• 2

• -2

• 1/2

In a real-world context, if the price of stamps increased linearly from 13 cents in 1975 to 37 cents in 2005, what is the slope of the price increase?

• 0.008

• 0.013

• 0.037

• 0.030

What inequality sign should be used if the graph is dashed and the test point (0,0) is true?

• <

• >

• ≤

• ≥